Ironic that this passed now. If I recall correctly, not allowing conferences with <12 teams is what started the whole ball rolling with the SEC poaching Arkansas and S. Carolina in 1990. This led to the destruction of the old Big 8, when half the teams went to the B12 and the loser half went to the WAC/CUSA. Same thing then happened to the BE in 2005, when the ACC poached Miami, VT, and BC to get to 12, so they could hold a championship game.
Imagine if a 10-team conference could've had a championship game back then. Would the ACC simply have stopped at adding Miami, clearly the marqee football school in the BE and one which delivered the large South Florida market? VT added no real market, but BC did (and Cuse kind of did, which is why they were originally targeted over VT), although BC was nowhere near the "brand" that Miami was. Would the B1G have taken PSU and years later, Nebraska, to get to 12?
If they only took Miami, the BE could have poached Louisville, Cincy and South Florida to get to 10 teams (along with RU, Cuse, BC, VT, Pitt, WV, and UConn) and then jettisoned the hoops teams, leaving a pretty damn good all-sports conference. And if the B1G never took PSU, we could have taken them in and just poached Louisville and Cincy to get to 10 and that would've been an even better, truly northeastern conference (if you count Louisville and Cincy as NE, which is a bit of a stretch, but at least their states are contiguous with the others).
I love the B1G, but I would've always preferred a really strong northeastern conference over anything else - I like the regional rivalries and being able to drive to almost every away game easily. Fun to speculate...